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firm profile

Great Mountain Partners

RIA New Haven, CT CRD 309528 Last verified October 2026

Overview

Great Mountain Partners is an SEC registered investment adviser based in New Haven, CT, registered since 2020. It reports $14.1B in assets under management across 11 accounts, with 17 employees.

Reported AUM
$14.1B
Discretionary
100%
Accounts
11
Average account
$1.3B
Employees
17
Registered since
2020
Jurisdictions
1

As reported in the firm's March 2026 filing.

Contact

1 phone number on file

Practice

Client types
  • Pooled Investment Vehicles
Fee structure
Percentage of Assets and Performance-Based Fees

Executive officers 3 of 4

  • Ethan Daniel Tyminski Chief Financial Officer CRD 7355781
  • Mallory Samantha Papp Chief Compliance Officer CRD 8243215
  • Alexander Thurlow Thomson Manager, Member CRD 5043149

1 more executive officer, with direct contact details

Location

Headquarters
157 Church St Fl 20
New Haven, CT 06510
County
South Central Ct
Metro area
New Haven-Milford, CT
Region
Northeast

Registrations

  • SEC registered
  • Registered in 1 jurisdiction
  • Website: gmp.llc

Every state, with registration dates

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